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| author | Adam Kwolek <adam.kwolek@intel.com> | 2012-04-13 16:51:59 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-04-17 12:33:37 +1000 |
| commit | 016e00f54635138ce34b9e4ba18d37e182288bd1 (patch) | |
| tree | fcf5ea4e39c642ae7d94eab4168d12f9c5d762b9 /mdadm.h | |
| parent | 54397ed97af065b1e3a12d6beab09bc05a07a9d0 (diff) | |
| download | mdadm-016e00f54635138ce34b9e4ba18d37e182288bd1.tar.gz | |
FIX: Support metadata changes rollback
Function reshape_super() guards metadata changes.
It is used to apply changes rollback in error case also.
As change (apply and rollback) can be not bi-directional reshape_super()
has to know if current action is metadata change that should be guarded
using metadata restrictions, or this is metadata rollback change
executed due to error occurrence.
In second case change has to be unconditional.
Signed-off-by: Adam Kwolek <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'mdadm.h')
| -rw-r--r-- | mdadm.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -740,9 +740,13 @@ extern struct superswitch { * initialized to indicate if reshape is being performed at the * container or subarray level */ +#define APPLY_METADATA_CHANGES 1 +#define ROLLBACK_METADATA_CHANGES 0 + int (*reshape_super)(struct supertype *st, long long size, int level, int layout, int chunksize, int raid_disks, int delta_disks, char *backup, char *dev, + int direction, int verbose); /* optional */ int (*manage_reshape)( /* optional */ int afd, struct mdinfo *sra, struct reshape *reshape, |